2HUH

Crystal structure of a duf2027 family protein (bt_2179) from bacteroides thetaiotaomicron at 1.54 A resolution

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP, NANODROP	7.5	293	12.0% PEG-3000, 0.2M NaCl, 0.1M HEPES pH 7.5, VAPOR DIFFUSION, SITTING DROP, NANODROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.3	46.7

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 43.043	α = 90
b = 43.043	β = 90
c = 167.295	γ = 90

Symmetry
Space Group	P 43 21 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	CCD	MARMOSAIC 325 mm CCD	Flat collimating mirror, toroid focusing mirror	2006-07-02	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL9-2	0.91837,0.97922,0.97905	SSRL	BL9-2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym I (Observed)	Net I Over Average Sigma (I)	Redundancy	Number Reflections (All)	Number Reflections (Observed)	Observed Criterion Sigma (F)	Observed Criterion Sigma (I)	B (Isotropic) From Wilson Plot
1	1.5	30.002	97.6	0.076	0.076	6.1	8.4		23849

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.54	1.58	92.7		0.767	0.767	1	4.2	1601

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MAD	THROUGHOUT	1.54	30.002	23764	1216	97.38	0.168	0.166	0.192	RANDOM	13.411

Temperature Factor Modeling
Anisotropic B[1][1]	Anisotropic B[1][2]	Anisotropic B[1][3]	Anisotropic B[2][2]	Anisotropic B[2][3]	Anisotropic B[3][3]
0.1			0.1		-0.19

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.188
r_dihedral_angle_3_deg	11.378
r_dihedral_angle_1_deg	7.645
r_scangle_it	6.096
r_scbond_it	4.366
r_dihedral_angle_4_deg	4.205
r_mcangle_it	2.548
r_mcbond_it	1.966
r_angle_refined_deg	1.493
r_angle_other_deg	0.742
r_mcbond_other	0.429
r_nbd_refined	0.199
r_symmetry_vdw_refined	0.197
r_symmetry_vdw_other	0.192
r_xyhbond_nbd_refined	0.191
r_nbtor_refined	0.186
r_nbd_other	0.174
r_symmetry_hbond_refined	0.162
r_chiral_restr	0.094
r_nbtor_other	0.083
r_bond_refined_d	0.019
r_gen_planes_refined	0.007
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1164
Nucleic Acid Atoms
Solvent Atoms	163
Heterogen Atoms	1

Software

Software
Software Name	Purpose
MolProbity	model building
SHELX	phasing
REFMAC	refinement
SCALA	data scaling
PDB_EXTRACT	data extraction
MOSFLM	data reduction
CCP4	data scaling
SHELXD	phasing
autoSHARP	phasing